1GETHOSTNAME(2)                System Calls Manual               GETHOSTNAME(2)
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NAME

6       gethostname, sethostname - get/set name of current host
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SYNOPSIS

9       gethostname(name, namelen)
10       char *name;
11       int namelen;
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13       sethostname(name, namelen)
14       char *name;
15       int namelen;
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DESCRIPTION

18       Gethostname  returns  the standard host name for the current processor,
19       as previously set by sethostname.  The parameter namelen specifies  the
20       size  of  the  name array.  The returned name is null-terminated unless
21       insufficient space is provided.
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23       Sethostname sets the name of the host machine to  be  name,  which  has
24       length  namelen.  This call is restricted to the super-user and is nor‐
25       mally used only when the system is bootstrapped.
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RETURN VALUE

28       If the call succeeds a value of 0 is returned.  If the call fails, then
29       a  value  of  -1  is returned and an error code is placed in the global
30       location errno.
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ERRORS

33       The following errors may be returned by these calls:
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35       [EFAULT]       The name or namelen parameter gave an invalid address.
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37       [EPERM]        The caller tried to set the hostname  and  was  not  the
38                      super-user.
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SEE ALSO

41       gethostid(2)
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BUGS

44       Host  names  are limited to MAXHOSTNAMELEN (from <sys/param.h>) charac‐
45       ters, currently 64.
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494.2 Berkeley Distribution        May 22, 1986                   GETHOSTNAME(2)